Flush valve



April 8, 1930. A. E. woLl-'F 1,753,229 b FLUSH VALVE Filed sept. 27, 1927 E? l Mum/0W war/f @y Patented Apr. 8, 1939 ALFRED n. woLFF, or KANsAsoITmMIssoURI FLUSH VALVE Application filed Septemberr27, 1927;. SerialNo. .222,391.1

rlhis invention relates to valves and their construction and refers more particularly to flush-valves employed to control the flow of fluids through conduits, such as are used in connection with sanitary devices and 4appliances.

One of the salient features of this invention is to provide a device with 'means whereby the valve may be so regulated as to vary the amount of liquid passing therethrough.

Another salient feature of the invention is toproduce a valve which is easily adapted` to varying liquid pressures.

An additional feature of therinvention is to provide a flushing valve which dispenses with a tank or reservoir. Y

It will also be seen from the description of the invention that there'are other advantageous features such as cheapness of construction and installation, economy of liquid consumption, cleanliness and reliability of operation and convenience of installation and op eration.

Referring to the drawings:

Figure 1, is a central longitudinal section through a valve embodying the invention, showing the valve in a closed position.

Figure 2', is a sectional view taken along the line a-a, of Figure 1. so

of the upper portion of the valve, parts there-v of being broken away. 'v

Figure 4, is a cross sectional view taken along the line b-b of Figure 1. i

Figure 5, is a fragmental view through the lower portion of the valve taken at right angles to Figure 1, showing the yoke 18 in position.

Referring to the drawings in detail, the valve body includes an upper section A, a central section B, and a lower sectionC, the sections being provided with threaded portions so that they Amay be readily assembled and disassembled, to facilitate installation and repair.

Referring to the drawings, 1 designates a guide tube removably connected with the cen tral section of the valve body.

Above tube 1 is a cone-shaped valve hous- 53 ing 2 in which the main valve-a piston Figure 3, is a fragmental elevational view valve-'-moves, this housing being provided with a shoulder 4, against the upper end of which the coiled'spring 5 engages. The lower end of spring 5 rests on1 the nut 7 which latter holds the vwasher 8 in position. 10 is a superimposed'valvefon top of piston valve 3so arranged that when in normal position it will close the upper end of tube 6 centrally disposed in valve 3 held in position by head 13 and nut 7. Rod 9 is removably attached t'o valve 10 and extends centrally through tube 6 and heldin posit-ion by a coiled spring 12 which rests on a pin 11. A movable guide member 14 operates in the guide tube 1. The

central 'part of the movable guide member 14l consists of a threaded pore, inV which the threaded body 15-of the rod 16, fits. The rod 16 is supplied with aset screw 17. A yoke 18 is attached to the arms 419 `of valve operating lever 20, by which the' movable guide member 14 is raised.y The lever 2O is'pivotally connected `with the valve body at'21, by means of a pivot pin.` A grooveorcanal 22 is formedin the upper sect-ion A communieating with the rwater inlet pipe and a 1 groove 23 in the convex -side of the [coneshaped valve housing' 2, terminating in a perforation 24, leading. into 'the -interior hollow upper part of the valve housing' 2. The groove 23 decreases in width,l reachingVy its minimumsiZe at 25. The upper V end of the valve housing v2 is threadedji'n 26 forl the reception of cap 27'which covers the upper extremity of the valve. In the valve housing 2 a groove or knotch is formed, into which fits the linger 28 of the graduated ring 29 in such a manner that any movement of the ring 29 will result in a relative movement of the coneshaped valve housing 2 ina horizontal direction, bringing either thev wide or the constricted part of the groove 23 before the canal 22V thereby varying the quantity of liquid passing into the interior of valve housing 2. The graduated ring 29 is equipped with a set screw not shown in this drawing, to insure against any undue movements of thevalve housing or the graduated ring.

A washer 31 forms the lower part of the Vpiston valve 3., f

The operation of the valve is asfollows or washer 10, no fluid escaping through tube 1 which is closed by washer 31 of piston valve 3. By pressing on the lever 20 the arms 19 will move the guide member .14- upwardly within the guide tube 1 causing the rod 16 to engage the lower end of the rod 9, lifting the valve member or washer 1()V from its seat, releasing the liquid in the interior of the valve housing 2, by means of escapingl through tube 6, at the same time, elevating the piston valve 3, so as to permit the liquid from pipe 30 to passthereunder and escape through tube 1. Where valve 3 is in normal closed position the pressure on the system will force the liquid through canal 22, groove 23, opening 24 into the interior of the housing 2, aiding the closing of valve 3 and superimposed valve 10. Thus it will be seen that pressure on the system assists in closing valves 3 and l0 and also insures the maintenance of these valves in a normal closed position.`

Should it be desired to vary the -fluid pressure in the interior of the valve housing 2 over valves 3 and 10, it is .only necessary to loosen cap 2T, to permit the turning of the graduated ring 29 in order to bring the wider or the more constricted portion of the groove 23 into contact with canal 22.

Itis obvious that by .adjusting the rod 16 to a higher or lower level which is accomplished by opening set screw 17 and screwing rod 16 in one or the other direction, in the threaded body 15, the stroke of rod 9 and superimposed valve 10 will be varied by the movement of lever 20. l

It is, of course, understood that the con- Y struction of this valve may be varied withable valve housing within the body portion,

said body portion having a groove defining a. passage-way, said valve housing having a tapered slot adapted to register with the groove to establish communication between the valve housing and valve body to allow liquid to pass into the valve housing, a valve operating in the valve housing and manually controlled meansfor moving the valve member to control the amount of liquid passing through the valve body.

2. A flush valve including a body portion, a valve housing mounted within the body portion, said valve body having a groove, adapted to register With a tapered slot in the rotatable valve housing to establish communication between the valve body and valve housing, means :tor regulating the quantity of liquid passing from the valve housing, a piston valve operating in the valve housing and adapted to move to its closed position under the pressure exerted by the liquid entering the valve housing, manually controlled means for unseating the valve and means for releasing the liquid in the valve housing.

3. A flush valve of the character described comprising a valve body, a main valve seated ltherein, an auxiliary valve, spring means for maintaining spring tension on the respective valves, a rotatable housing within the valve body above the main valve provided with a duct for supplying fluid to the housing, a tapering groove in the valve housing adapted to connect with the 'fluid duct and varying the port opening by its rotation.

' 4l. A flush valve of the character described comprising a valve body, a main valve seated within said body, an auXiliary valve seated in lthe main valve and manually operated means for simultaneously functioning the main and auxiliary valves, a rotatable housing positioned above the main valve having a tapered groove inlet port therein, a duct Y in the housing registering with the tapered groove inlet port on the rotation of the housing, a cap manually operated from the eXterior of the valve body for rotating vthe valve body and varying the port'opening and controlling the introduction of fluid to the valve housing.

ALFRED n. woLrr. 

